1 /* $NetBSD: mfsnode.h,v 1.11 2001/12/06 04:27:43 chs Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)mfsnode.h 8.3 (Berkeley) 5/19/95 36 */ 37 38 /* 39 * This structure defines the control data for the memory based file system. 40 */ 41 42 struct mfsnode { 43 struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ 44 caddr_t mfs_baseoff; /* base of file system in memory */ 45 long mfs_size; /* size of memory file system */ 46 struct proc *mfs_proc; /* supporting process */ 47 struct buf_queue mfs_buflist; /* list of I/O requests */ 48 }; 49 50 /* 51 * Convert between mfsnode pointers and vnode pointers 52 */ 53 #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data) 54 #define MFSTOV(mfsp) ((mfsp)->mfs_vnode) 55 56 /* Prototypes for MFS operations on vnodes. */ 57 #define mfs_lookup genfs_badop 58 #define mfs_create genfs_badop 59 #define mfs_mknod genfs_badop 60 #define mfs_access genfs_badop 61 #define mfs_getattr genfs_badop 62 #define mfs_setattr genfs_badop 63 #define mfs_read genfs_badop 64 #define mfs_write genfs_badop 65 #define mfs_poll genfs_badop 66 #define mfs_mmap genfs_badop 67 #define mfs_seek genfs_badop 68 #define mfs_remove genfs_badop 69 #define mfs_link genfs_badop 70 #define mfs_rename genfs_badop 71 #define mfs_mkdir genfs_badop 72 #define mfs_rmdir genfs_badop 73 #define mfs_symlink genfs_badop 74 #define mfs_readdir genfs_badop 75 #define mfs_readlink genfs_badop 76 #define mfs_abortop genfs_badop 77 #define mfs_lock genfs_nolock 78 #define mfs_unlock genfs_nounlock 79 #define mfs_islocked genfs_noislocked 80 #define mfs_pathconf genfs_badop 81 #define mfs_advlock genfs_badop 82 #define mfs_blkatoff genfs_badop 83 #define mfs_valloc genfs_badop 84 #define mfs_vfree genfs_badop 85 #define mfs_truncate genfs_badop 86 #define mfs_update genfs_badop 87 #define mfs_bwrite vn_bwrite 88 #define mfs_revoke genfs_revoke 89 #define mfs_putpages genfs_null_putpages 90